There ought to be a zero star rating - because that's what the guys at Dino's are, a bunch of zeros.
I purchased a new Maytag dishwasher through Home Depot in Scottsdale and had them install it. It never worked properly on the first wash cycle - detergent wouldn't dissolve. Home Depot passed me off to Whirlpool service (who now manages service for Maytag) and they dispatched these yahoo's at Dino's to repair the dishwasher.
They were no shows. Not even a phone call to say, "hey, we can't make it out can we reschedule you?" I had to call back in to Whirlpool who sent me back to Dino's who said, "oh sorry, can we come out Monday?"
NO THANK YOU. If it were up to me I'd end your contract to service appliances with the manufacturer under warranty.